Who was the first trillionaire?

How the SpaceX listing did it

SpaceX priced its initial public offering (IPO) at $135 a share on June 11, 2026, and the shares began trading on the Nasdaq the next day under the ticker SPCX. That turned Elon Musk's SpaceX stake into a public market value, and Forbes counted him above $1 trillion the same day, the first person ever to reach the mark.

What trillionaire means here

Trillionaire here means an estimated net worth of at least $1 trillion on the two most cited trackers, the Forbes real-time list and the Bloomberg Billionaires Index. Both value his stakes in SpaceX and Tesla at market prices, and those stakes make up more than 98% of the total.

How he crossed the line again

Summer moves in SpaceX and Tesla shares took him below $1 trillion for about 3 months on the Bloomberg index. On October 5, 2026, a one-day gain of about $65 billion, driven by a jump in SpaceX shares, put him back above it.

The bottom line

Forbes put Elon Musk at about $1 trillion in October 2026. The Net Worth Tracker carries the live, dated figure and the math behind each stake.